From an advert in 1966: “A new Baldwin-Burns fuzz box has been introduced. It is a fresh version of the existing Buzz-Around and incorporates a special sustain effect. It is available now at a cost of 10 guineas.“
Bargain! Here’s a reasonably compact layout, I’ll add a mojo layout at some point too.
You could always add a conventional volume pot to this if you fancy a bit more control. Just take Timbre 2 to Volume 3, Volume 1 to ground and Volume 2 is the new output.